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July 17, 2014, 15:22 |
Wave Flume tutorial
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#1 | |
New Member
Dmitrijs Gavrilovs-Stepanovs
Join Date: Jun 2014
Posts: 15
Rep Power: 11 |
Hi everyone,
First of all, Niels, thank you very much for the tool and your effort in helping everyone to solve their problems. My problem is the following: I am using waveFlume tutorial to simulate waves propagating in a wave tank. I had to change the length of the tank and the depth so that it matches the required dimensions. I need to simulate a wave with a period of 0.913 seconds and a wave height of 0.033 metres. The depth of the wave tank is now 1 metre and the length is 17.965. The problem I experience is that the wave's amplitude decreases with the length of the tank (x-coordinate) and it is also out of the phase when I compare it to the analytical solution of the Stokes First Wave theory (this is what I am using). The following graphs demonstrate it (surface elevation at x=0, x=4, x=7.46 metres). x_0.jpg x_4.jpg x_746.jpeg I am also attaching my case files: https://www.dropbox.com/s/glv29onc0k2ehof/My_case.zip What I tried to do was refining the mesh significantly, but it made absolutely no difference. I also tried to use Stokes Second Wave Theory, but it gave exactly the same results. I also went through this thread and found a discussion of the similar problem to mine. It was posted by JanL (Jan Lohrmann), post #57, page 3. Quote:
I would really appreciate if someone would take a look at my problem or maybe someone has had it already? Thank you in advance! |
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